Vacuum cleaner



FIG. 1 is a top, front and left side perspective view of a vacuum cleaner showing our new design;

FIG. 2 is a front elevation view thereof;

FIG. 3 is a left side elevation view thereof;

FIG. 4 is a rear elevation view thereof;

FIG. 5 is a right side elevation view thereof; and,

FIG. 6 is a top plan view thereof.

The broken lines illustrate portions of the vacuum cleaner and define the bounds of the claimed invention, and form no part of the claimed design. 

CLAIM The ornamental design for a vacuum cleaner, as shown and described. 